Colour Mill
Oil-Soluble Food Coloring - Colour Mill Concrete Grey
Oil-soluble food coloring in Concrete Grey, 20 ml format
Colour Mill Concrete Grey evokes smooth slate and a gray stormy sky. This oil-soluble food coloring is designed for fatty pastry bases: melted white chocolate, butter ganache, buttercream, royal icing, and fondant warmed by hand. Particularly sought after by cake designers for minimalist contemporary wedding cakes and birthday layer cakes with an urban and architectural theme, it delivers a distinctive shade recognizable from the Colour Mill palette (Australia).
Made in Australia using proprietary pigment encapsulation technology, Colour Mill withstands baking temperatures of up to 180°C without shifting or lightening. The Concrete Grey shade remains stable after baking, making it the reference choice for colored cake batters before they go into the oven. The 20 ml squeeze dropper bottle allows precise dosing for occasional use and shade testing, without waste when preparing small batches.
Concrete Grey shade
Official reference from the Colour Mill palette (Australia).
Concrete Grey: 3 shades depending on the dosage
The shade can be subtly adjusted according to the dosage without losing its identity.
Light dosage
2 to 3 drops / 250 g
Standard dosage
5 to 8 drops / 250 g
Intense dosage
15 to 25 drops / 250 g
Creative ideas with Concrete Grey
5 signature uses where this shade makes the difference:
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• Minimalist contemporary wedding cakes
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• Birthday layer cakes with an urban and architectural theme
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• Royal icing cookies with an industrial or loft theme
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• Drip cakes with a modern, chic concrete theme
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• Corporate event cupcakes or launch event cupcakes
Features
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• Brand: Colour Mill (Australia)
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• Type: Concentrated oil-soluble food coloring
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• Shade: Concrete Grey
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• Packaging: 20 ml squeeze dropper bottle
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• Compatible bases: Melted white chocolate, ganache, buttercream, royal icing, sugar paste
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• Usual dosage: 2 to 6 drops per 250 g of mixture
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• Baking resistance: Stable up to 180°C; does not lighten after baking
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• Origin: Australia (proprietary manufacturing)
Instructions for use
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Preparing the base: temper the fat-based mixture (white chocolate, ganache, buttercream) to 25–30°C. Above 35°C, some pigments may lose intensity.
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Initial dosage: shake the bottle for 10 seconds. Add 2 to 4 drops per 250 g of mixture for pastel shades, 6 to 10 drops for bright shades, and 15 to 25 drops for dark shades.
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Mixing: whisk with a stand mixer or silicone spatula for 30 to 60 seconds to distribute the colour evenly.
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Resting and stabilisation: leave to rest for 30 minutes at room temperature under cling film placed directly on the surface. The shade develops and reveals its full colour during resting.
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Optional adjustment: if the shade is too pale, add 1 to 3 additional drops and remix. Proceed in increments to avoid oversaturation.
Ingredients and compliance
Composition: food-grade vegetable oil base and food colouring pigments compliant with European regulations (EU 1333/2008).
Allergens: no major allergens declared. Gluten-free, lactose-free, egg-free, peanut-free, soy-free. Suitable for vegetarian and vegan diets.
Storage
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• Keep the bottle closed in a cool, dry place away from direct sunlight.
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• Ideal storage temperature: between 15 and 22°C.
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• Slight pigment/oil separation is normal after prolonged storage: shake for 10 seconds before use.
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• Once opened, use within 12 months to preserve maximum pigment intensity.
Patissland Tip - Concrete Grey
Concrete Grey (slug grey) is a niche color, used for ultra-modern minimalist wedding cakes and corporate event orders. Avoid it for children's birthdays (too understated). Combined with Gold Lustre and White, it creates the chic, on-trend polished-concrete effect found in contemporary design-led pastry shops.
Frequently asked questions
Is the 20 ml format sufficient for regular use?
Expect approximately 30 to 50 colored batches from a 20 ml bottle, depending on the dosage. For regular professional use, the 100 ml format (see above) costs approximately 35% less per milliliter.
How many drops for 250 g of buttercream?
For pastel shades: 2 to 4 drops. For bright shades: 5 to 10 drops. For dark shades: 12 to 20 drops. Always start with less and gradually adjust; intensifying is easier than lightening.
Does Colour Mill food coloring withstand baking?
Yes, Colour Mill is one of the few oil-based food colorings that retains its intensity after baking at up to 180°C. This property distinguishes it from conventional liquid food colorings, which become lighter in the oven.
Can Colour Mill be used in water-based mixtures (royal icing, syrup)?
No, Colour Mill oil-based food coloring is designed for fat-based mixtures: melted chocolate, ganache, buttercream, and sugar paste. For water-based mixtures, use the Colour Mill water-based range.
Does the bottle have a built-in dropper?
Yes, the Colour Mill 20 ml bottle has a built-in dropper opening in the soft cap. A simple squeeze dispenses one precise drop.
Take it further
Complete your Colour Mill palette:
